# dns-aaaa-portal-subdomain

> dns-aaaa-portal-subdomain is a paid API for AI agents from dns.intel.rallylive.ca, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-21).

Looks up the AAAA (IPv6) DNS record for the 'portal' subdomain of a given domain using Cloudflare DNS over HTTPS, returning existence, records, and TTL.

## Facts

- Endpoint: GET https://dns.intel.rallylive.ca/dns/host/portal/aaaa?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/dns-aaaa-portal-subdomain-97cec18e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_tbOANAbI5y9O4tTCfaj8Q

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability dns-aaaa-portal-subdomain-97cec18e
```

Example prompt: Can you check whether portal.rallylive.ca has an AAAA record — I want to know if that subdomain exists and what IPv6 address it resolves to, and how long the TTL is?

## When to prefer this

Use this endpoint when you specifically need to check the IPv6 (AAAA) record of the 'portal' subdomain for a given domain without enumerating all subdomains. Prefer it over generic DNS resolvers when you want a quick, targeted existence check for this common host pattern via Cloudflare's authoritative DoH resolver.

## Known failure modes

- Domain does not exist — returns NXDOMAIN or empty record set
- portal subdomain has no AAAA record (A record may exist but not AAAA)
- Cloudflare DoH is unreachable — timeout or upstream error
- Invalid domain format supplied — malformed query
- Rate limiting or payment failure for the $0.01 per lookup fee

## How this service works

AAAA record of portal.<domain>: looks up the portal host under the domain you give (AAAA via Cloudflare DoH) and reports whether it exists, its records and TTL. Quick existence check for common hosts like portal without enumerating subdomains. $0.01 per lookup.

## Output

Returns whether the portal.<domain> host exists, its AAAA (IPv6) DNS records, the TTL value, and the DNS response code as resolved by Cloudflare DNS over HTTPS.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/dns-aaaa-portal-subdomain-97cec18e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from dns.intel.rallylive.ca](https://www.zero.xyz/host/dns.intel.rallylive.ca/llms.txt)